12/31/2023 0 Comments Advanced mce remote mapper windows 10Yes should be selected here as well, to enable kdump-tools. | Should kdump-tools be enabled be default? | | reboot is still required in order to enable the crashkernel kernel | | If you choose this option, the kdump-tools mechanism will be enabled. Select Yes to hook up kexec-tools for all reboots. | Should kexec-tools handle reboots (sysvinit only)? | | kernel loaded by kexec instead of going through the full system boot | | If you choose this option, a system reboot will trigger a restart into a | During the installation, you will be prompted with the following dialogs. Starting with 16.04, the kernel crash dump mechanism is enabled by default. The kernel crash dump utility is installed with the following command: sudo apt install linux-crashdump This permits the existing memory area to remain untouched in order to safely copy its contents to storage. When a kernel panic occurs, the kernel relies on the kexec mechanism to quickly reboot a new instance of the kernel in a pre-reserved section of memory that had been allocated when the system booted (see below). The cause can be determined by inspecting the copied memory contents. Whenever one of the above events occurs, it is important to find out the root cause in order to prevent it from happening again. In other situations a manual intervention is required in order to capture the memory. The following events can cause a kernel disruption :įor some of those events (panic, NMI) the kernel will react automatically and trigger the crash dump mechanism through kexec. Multi-node Configuration with Docker-ComposeĪ Kernel Crash Dump refers to a portion of the contents of volatile memory (RAM) that is copied to disk whenever the execution of the kernel is disrupted.
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